Machine for speckling bricks.



J. D. MARTIN.

MACHINE FOR SPEGKLING BRICKS.

APPLICATION FILED APR-24.1908.

937,706. Patented Oct. 19,1909.

2 SHEETB-BHEET 1.

Fig. 1.

Witnesses= Inventor,

01m 17. Marlin,

J. D. MARTIN. MACHINE FOR SPECKLING BRICKS. APPLICATION I'ILED APB. 24,1903.

937,706. Patented Oct. 19, 1909.

2 SHEETS-SHEET 2.

Fig. 2.

Wesses= I I I Inventor,

WM 7% 011 D. Marlin, W @,M 4 1 7% 15 Horneyf UNITED STATES PATENT OFFICE.

J'OHN D. MARTIN, NEW STRAITSVILLE, OHIO, ASSIGNOR T0 THE STRAITSVILLE IMPERVIOUS BRICK CO., 015 NEW STRAITSVILLE, OHIO, A CORPORATION OF ARIZONA TERRITORY.

MACHINE FOR SPECKLING BRICKS.

Specification of Letters Patent.

Patented Oct. 15, 1909.

a machine for the manufacture of brick with means by which the faces and ends of the brick are evenly and economically decorated with suitable speckling matter. The speckling matter is applied, preferably, in the solid form, to the surface of the plastic clay after it has been molded sufiiciently, at least, to determine the faces which may be exposed to view when the brick has been laid in a building or wall.

In the accompanying two sheets of drawings, which forma part of this applicationFig.ure l is a front view, broken away on one side, showing the mechanism embodying my invention for applying speckling matter to a clay column. Fi 2 1s a side view of the mechanism, one o the supports bein broken away.

A orizontal roller A with numerous shallow holes in its surface is located in a box B and overhangs the front edge of the box; The box incloses the roller at the bottom, ends and rear, but not at the front. The speckling matter to be used is in dry powdered or grain form, and is placed in the box so that the roller is embedded about half way. The grains are caught in the shallow holes and emptied upon an inclined board C. The'width of this board at its upper 'end is equal to the combined length of the sides of the brick which are to be decorated with the speckling matter. In. the embodiment lllustrated, these are the face and two ends of a brick. The roller is driven by a belt D. Its length is the same as the width of the board at its upper end. There are guards E E along the edges of the board to keep' any grains from spilling over, and the board is supported by a crossbar F between uprights of a supporting frame G. The middle portion of the lower end of the board has a width equal to the length of a brick and isso located as to discharge the grains on the top of the clay column. At each side the board is cut back, and the width of each tubes on one side face the ends on the other side. Frames I I, mounted to slide laterally, fork the tubes, and each frame carries rollers J and K, one in front and the other at the rear of the tubes. These rollers press the sides of a clay column L which rides on a belt M. As the column is pushed forward the belt is carried with it, driving the pulley N, and also through the pulleys O and P the roller which feeds the speckling matter. Hence, the speed of the feed roller varies with that of the clay column and is at all times proportional, whereby a deposit of very nearly the same amount of speckling matter on the surface of each brick is insured, no matter what the variation in the speed of the column may be. The rollers in front and to the rear of the bent tubes are pressed against theclay column by springsQ Q which bear agalnst the frames carrying the rollers. The rollers at the rear are covered with felt and oil is dripped on the felt from reservoirs R R through p pes S S. These rollers dampen the vertlcal sides of the clay column so that the grains of speckling matter from the tubes Wlll be held in place to be rolled in by the rollers in front of the tubes. The speckl ng matter deposited on the top rests where it falls, so that oiling is not required for lts retention until rolled in flush with the clay surface by a roller T.

In practice, the foregoing mechanism is conveniently located so as to apply the speckling matter to -a clay column as 1t emerges from the die of a stiff-mud brickmachine, and in advance of the polnt where the column is wire-cut into bricks, but such location is not essential to the invention and the mechanism may in whole or in part have other locations. Neither is the invention restricted in its application to bricks formed in the manner above indicated.

The invention has special application in connection with bricks of light buff-burning clay, and in connection therewith manganese ore is an attractive and suitable mineral ,matter, Contrasting in color with the clay,

proportionately to the movement of the support, and means for embedding the speckling matter into the clay column, substantially as described.

2. In a machine for speckling brick, the combination of means for applying liquid to a vertical face of a clay column, means for projecting speckling matter against the dampened face, to produce a speckled effect and means' for embedding the speckling matter into the column, substantially as described.

3. In a machine for specklin brick, the combination of a roller for applying liquid to a vertical face of a clay column, means for projecting speckling matter against the dampened face to produce a speckled effect, and a roller for embedding the speckling matter into the column, substantially as described.

4. In a machine for speckling brick, the

combination of a feed for speckling matter,

. port to deliver proportionately to the move- 'ment of the support, means for projecting the speckling matter against the dampened face to produce a speckled effect, and means for embedding the speckling matter into the column, substantially as described.

5. In a machine for speckling brick, the.

combination of a feed for speckling matter,

a supporting belt for a horizontally moving clay column constructed to move therewith, a roller for applying liquid to a vertical face of the clay column,,means whereby the feed for speckling matter is operated by the supporting belt for the column to deliver proportionately to the movement of the belt, means for projecting the speckling matter against the dampened face to produce a speckled effect, and means for embedding the speckling matter into the column, substantially as described.

Signed by me at New Straitsville, Ohio, this 1st day of April, 1908.

, JOHN D. MARTIN.

Witnesses:

BERNARD MITCHELL,

HANNAH MILGATE. 

